Using an "8-speed" crankset with a 9-speed cassette

On 5 Jun, 14:22, Tom Anderson wrote:
I take it that in a 9-speed chain, the gap between the plates, the holes
in the chain as it were, is smaller than in an 9-speed? But still wider
than the width of the teeth on any of the sprockets?

According to Sheldon, "Chains for derailer applications also come in
various external widths. Newer clusters which have more sprockets use
chain with thinner side plates and flush rivets."

So the holes are the same, but the sides are thinner.

Colin

On Thu, 5 Jun 2008 00:07:11 +0100, Tom Anderson
may have said:

Hi,

Can i use a crankset described as "Rear Speeds: 8/7", like this:

http://cycle.shimano-eu.com/catalog/...=1212620610078

With a 9-speed cassette, like this:

http://wiggle.co.uk/ProductDetail.as...eed%20Cassette

?

I'll be using a 9-speed chain.

I have been told yes by one person, and maybe not by another.

It will work just fine. The only place where I encountered problems
with chain/sprocket issues on a multispeed was one instance when a
bike owner wanted to try to shoehorn a 10s rear cassette and wheel on
to a bike that had been built for a 5s rear; the old stamped steel
front sprockets on that fossilized near-beater were still thick enough
that the 10s chain wouldn't ride down on it properly. Your 7/8
sprockets will carry a 9s chain with no problem.

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